Synonyms of irregularities

1 Syllable
hump, shift, break, stop, twist, bump, dent, flaw, spasm, hole
2 Syllables
change, roughness
3 Syllables
variation, bumpiness, jaggedness, deviation, distortion
4 Syllables
aberration, imperfection, uncertainty, asymmetry
5 Syllables
inconsistency, variability